Pioneer SX-D7000
Stereo receiver with non-switching DC Power Amp Quartz-PLL tuner and electronic touch tuning
Power Amp Highlights
Protection circuitry has gold-plated dual-contact relays for fast response and unfailing dependability should power-related misshape occur. the receiver and your speakers are fully protected the circuitry mutes power on/off noise, protects power transistors and speaker from abnormal direct-current potentials and overload at the output.
Preamp/Control Highlights
Function Indicators (FM/AM/AUX/PHONO) - Pioneer's "Light Touch" buttons are employed to indicate the selected function. The buttons are lit and glow green when engaged.
Speakers (A, B, C) switches with LED indicators
Low Subsonic Filter is 18 Hz with -6dB/oct. curve.
Tape Monitor and Duplicate switches for decks 1 and 2, deck-to-deck dubbing is easily accomplished between the two in either direction.
Loudness, Balance, Mode (Stereo/Mono) and Muting (-20 dB) controls
Adaptor switch to patch in a signal processor unit such as a graphic equalizer, dynamic processor or reverberation unit.
Attenuator-Type Master Volume Control
We've improved the "feel" of the master volume control by giving it decibel calibrations from 0 down to -70 dB.
For operating convenience, the control has 41 detents or click stops. The mechanism which actually controls the volume - the potentiometer - is elaborate with four-ganged design. there is one two-ganged potentiometer ahead of the tone controls amp. another behind. the thoroughness of this design is apparent in improved s/n ratio during low-level sound reproduction.
Low-Distortion Tone Control Amp
This is an IC-built circuit block, employing NFB (Negative Feedback) to lower distortion to 0,005% or less (4V output) over the 20 -20,000 Hz range. Bass and treble adjustments are made by the two slider controls - each with 11 click stops - in conjunction with two switches for Turnover.
The Turnover for Bass offers a choice of 400 Hz or 200 Hz as the frequency at which response is down by -3 dB; turnover for Treble gives a choice of 2,5 kHz or 5 kHz. only a tone control this elaborate and far-reaching provides total system control. You may, if you wish, bypass the tone circuit.
Specifications
Power Amp Section
Continuous Power Output: 120 watts per channel, min. At 8 ohms from 20 to 20,000 Hz with no more than 0,005% THD
Total Harmonic Distortion:
No more than 0,005% (continuous rated power output)
No more than 0,004% (60 watts per channel power output)
Intermodulation Distortion (50 Hz : 7,000 kHz = 4:1):
No more than 0,005% (continuous rated power output)
No more than 0,004% (60 watts per channel power output)
Frequency Response: 3 to 450,000 Hz +0 dB, -3 dB
Input Sensitivity/Impedance: 1V/50 kΩ (Power Amp In)
Output:
Speaker : A, B, C; A+B, B+C, A+C; OFF
Headphones : Low impedance
Damping Factor: 60 (20 to 20,000 Hz, 8Ω)
Hum and Noise (short circuited, A network): 115 dB
Pre-amp Section
Input Sensitivity/Impedance
Phono 1, 2 (MM) : 2,5 mV/50 kΩ
Phono 1, 2 (MC) : 0,25 mV/100 ohm
Aux, Tape 1 & 2, Adaptor In: 150 mV/50 kΩ
Phono 1, 2 Overload Level: 200 mV(1 kHz, THD 0,005%)
Output Level/Impedance:
Tape Rec 1 & 2, Adaptor Out: 150 mV
Pre Output: 1V/1kΩ
Total Harmonic Distortion: No more than 0,005% (20 to 20,000Hz, 4V output)
Frequency Response
Phono (RIAA Equalization): 20 to 20,000 Hz, ±0,2 dB
Aux, Tape 1 &2, Adaptor: 5 to 100,000 Hz, +1,0 dB, -3,0 dB
Tone Control
Bass at 200 Hz : ±8 dB (100 Hz)
Bass at 400 Hz : ±10 dB (100 Hz)
Turnover Frequency : 200 Hz / 400 Hz
Treble at 2,5 kHz : ±10 dB (10 kHz)
Treble at 5,0 kHz : ±8 dB (10 kHz)
Turnover Frequency : 2,5 kHz / 5,0 kHz
Filter
Low (Subsonic) : 18 Hz (6 dB/oct)
Loudness Contour (volume control set at -40dB) : +6 dB (100 Hz), +3 dB (10 kHz)
Hum and Noises (Short-circuited A network)
Phono MM : 86 dB
Phono MC : 72 db
Tuner, Aux, Tape 1 & 2, Adaptor: 100 dB
Muting : -20 dB
FM Tuner Section
Usable Sensitivity: 10,2 dBf (1,8 µV); (Mono)
50 dB Quieting Sensitivity:
Mono : 15,7 dBf (3,2 µV)
Stereo : 34,2 dBf (28,2 µV)
Signal-to-Noise Ratio (at 85 dBf):
Mono : 82 dB
Stereo : 78 dB
Distortion (at 65 dB)
100 Hz : 0,1% (mono); 0,2% (stereo)
1 kHz : 0,07% (mono); 0,1% (stereo)
6 kHz : 0,1% (mono); 0,2% (stereo)
Frequency Response: 30 to 15,000 Hz ±0,5 dB
Capture Ratio: 1,0 dB
Alternate Channel Selectivity: 80 dB (400 kHz)
Spurious Response Ratio: 80 dB
Image Response Ratio: 80 dB
IF Response Ratio: 90 dB
AM Suppression Ratio: 60 dB
Muting Threshold: 35,7 dBf (32 µV)
Stereo Separation: 50 dB (1 kHz), 35 dB (30 Hz to 15 kHz)
Subcarrier Ratio: 65 dB
SCA Rejection Ratio: 65 dB
Antenna Input: 300 Ω balanced; 75 Ω unbalanced
AM Tuner Section
Sensitivity: 300 µV/m (IHF, ferrite antenna); 15 µV (IHF, external antenna)
Selectivity: 30 dB
Signal-to-Noise ratio: 45 dB
Image Response Ratio: 30 dB
IF Response Ratio: 60 dB
Antenna: Ferrite loopstick antenna
Semiconductors: 15 FETs; 22 ICs; 105 transistors; 105 Diodes
General
Power Requirement: 120 V, 60 Hz ; 220 V, 50/60 Hz
Power Consumption: 250 W
Dimensions (W x H x D): 519 x 180 x 460 mm (20-7/16" x 7-1/16" x 18-1/8")
Weight: 19,2 kg (42 lbs5 oz) without package
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